Free rowing boat plans for the backyard home builder, build your own rowing boat, dory, folding dinghy or pram using these simple plywood designs.. Learn how to build yourself a boat in your backyard. our complete boat plans collection is available for free and immediate download. it is the largest wood boat. Study plans are available for some of these designs – remember a study plan gives you more details and a wood materials list on an a1 sheet, so that you can.